在生物组织形态发生过程中,一个重要而普适的原则,是类聚行为(Sorting behavior),这已为一系列经典性研究所证实。 与细胞类聚的一般现象类似,大量神经元之间相对空间位置关系的确定及其相互联系的建立,看来也是遵循同类相聚这个普遍原则的,对神经系统的类聚行为,有线索表明,在预定程序指导下的形态结构自组织可能是非常重要。 An important and universal principle in the formation of biological tissues is the Sorting Behavior, which has been confirmed by a series of classical studies. Similar to the general phenomenon of cell-like polygons, the determination of the relative spatial location of numerous neurons and the establishment of their interrelationship appear to follow the general principle of cohesion of the same kind, with clues to the clustering of the nervous system, The self-organization of the morphological structure under the guidance of a predetermined procedure may be very important.